this is what i want but dont know how to do it. 以下是我的主要活动的代码。我有一个声音剪辑的列表视图，我想在我们点击任何声音时显示进度条和按钮，进度条应指示相应声音剪辑的进度和按钮应该更改为停止图标。我正在使用带有arraylist.i的adapterview附加了该图像
public class MainActivity extends AppCompatActivity implements AdapterView.OnItemClickListener,NavigationView.OnNavigationItemSelectedListener {
private ArrayList<String> songList;
private ListView songView;
SearchView searchView;
private MediaPlayer mp;
ProgressBar progressBar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
songList = new ArrayList<>();
mp = new MediaPlayer();
songView = findViewById(R.id.song_list);
progressBar=findViewById(R.id.progressBar);
try {
getSongList();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
ArrayAdapter<String> listAdapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, songList);
songView.setAdapter(listAdapter);
songView.setOnItemClickListener(this);
registerForContextMenu(songView);
Intent serviceIntent =
new Intent("com.android.vending.billing.InAppBillingService.BIND");
serviceIntent.setPackage("com.android.vending");
bindService(serviceIntent, mServiceConn, Context.BIND_AUTO_CREATE);
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
// code for scroll to top button
FloatingActionButton fab = findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
songView.setSelection(0);
}
});
DrawerLayout drawer = findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
IInAppBillingService mService;
ServiceConnection mServiceConn = new ServiceConnection() {
@Override
public void onServiceDisconnected(ComponentName name) {
mService = null;
}
@Override
public void onServiceConnected(ComponentName name,
IBinder service) {
mService = IInAppBillingService.Stub.asInterface(service);
}
};
public void getSongList() throws IllegalAccessException {
Field[] fields = R.raw.class.getFields();
// loop for every file in raw folder
for (Field field : fields) {
int rid = field.getInt(field);
// Use that if you just need the file name
String filename = field.getName();
songList.add(filename);
songList
}
}
@Override
public void onBackPressed() {
DrawerLayout drawer = findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
public void onDestroy() {
super.onDestroy();
if (mService != null) {
unbindService(mServiceConn);
}
}
@Override
public boolean onCreateOptionsMenu(final Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
searchView = (SearchView) MenuItemCompat.getActionView(menu.findItem(R.id.action_search));
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
@Override
public boolean onQueryTextChange(String newText) {
return true;
}
});
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_remove_ads) {
} else if (id == R.id.nav_share) {
try {
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("text/plain");
i.putExtra(Intent.EXTRA_SUBJECT, "SoundBoard");
String sAux = "\nGet this app on Google Play\n\n";
sAux = sAux + "https://play.google.com/store/apps/details?id=com.facebook.orca \n\n";
i.putExtra(Intent.EXTRA_TEXT, sAux);
startActivity(Intent.createChooser(i, "choose one"));
} catch (Exception e) {
//e.toString();
}
} else if (id == R.id.nav_rate) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse("https://play.google.com/store/apps/details?id=com.facebook.orca"));
startActivity(intent);
} else if (id == R.id.about_us) {
}
DrawerLayout drawer = findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
// selected item
TextView txtView = (TextView) view;
String fname = txtView.getText().toString().toLowerCase();
int resID = getResources().getIdentifier(fname, "raw", getPackageName());
Toast.makeText(getApplicationContext(), "Hello Javatpoint"+getResources().getResourceName(resID), Toast.LENGTH_SHORT).show();
MediaPlayer mediaPlayer = MediaPlayer.create(this, resID);
mediaPlayer.start();
if (mp.isPlaying()) {
mp.reset();
}
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
if (v.getId() == R.id.song_list) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_list, menu);
}
}
@Override
public boolean onContextItemSelected(MenuItem item) {
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
View view = info.targetView;
TextView txtView = (TextView) view;
String fname = txtView.getText().toString().toLowerCase();
int resID = getResources().getIdentifier(fname, "raw", getPackageName());
switch (item.getItemId()) {
case R.id.share:
// add stuff here
//String sharepath=
//Uri uri = Uri.parse(view.getResources().getResourceName(resID));
//String sharePath = Environment.getExternalStorageDirectory().getPath()
// + "/Soundboard/Ringtones/custom_ringtone.ogg";
//Uri uri = Uri.parse(sharePath);
// Use this to load the file
Uri uri=Uri.parse("file://" +getResources().getResourceEntryName(resID)+".mp3");
String str=("content://"+uri);
Intent share = new Intent(Intent.ACTION_SEND);
share.setType("audio/mp3");
share.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
share.putExtra(Intent.EXTRA_STREAM,uri);
startActivity(Intent.createChooser(share, "Share Sound File"));
return true;
case R.id.notification:
// edit stuff here
uri=Uri.parse("file://" +getResources().getResourceEntryName(resID)+".mp3");
str=("content://"+uri);
Toast.makeText(getApplicationContext(), ""+uri, Toast.LENGTH_SHORT).show();
return true;
case R.id.ringtone:
// remove stuff here
return true;
default:
return super.onContextItemSelected(item);
}
}
}